Distributed charging station

ABSTRACT

A device charging system including a battery module and a central charging station. The battery module is configured to supply a type of power to at least one load device. The central charging station is in communication with the battery module. The central charging station includes an electronic processor configured to define a virtual boundary, determine a location of the battery module, determine, based the location of the battery module, whether the battery module is within the virtual boundary, and transmit a command to the battery module causing the battery module to stop supplying power to the load device when the battery module is not within the virtual boundary.

RELATED APPLICATIONS

This application claims the benefit to U.S. Provisional PatentApplication No. 62/524,818, filed on Jun. 26, 2017, and U.S. ProvisionalPatent Application No. 62/636,454, filed on Feb. 28, 2018, the entirecontents of both of which are incorporated herein by reference.

FIELD

Embodiments relate to portable power supplies.

SUMMARY

Portable power supplies (for example, battery charging modules, mobilepower modules, etc.) may need to be kept within proximity of a centraldevice to ensure that they do not get lost or stolen.

Accordingly, embodiments provide a device charging system including abattery module and a central charging station. The battery module isconfigured to supply a type of power to at least one load device. Thecentral charging station is in communication with the battery module.The central charging station includes an electronic processor configuredto define a virtual boundary, determine a location of the batterymodule, determine, based the location of the battery module, whether thebattery module is within the virtual boundary, and transmit a command tothe battery module causing the battery module to stop supplying power tothe load device when the battery module is not within the virtualboundary.

Other embodiments provide a method of monitoring a battery modulesupplying power to at least one load device within a charging system.The method including defining a virtual boundary and determining alocation of the battery module. The method further includingdetermining, based the location of the battery module, whether thebattery module is within the virtual boundary, and transmitting acommand to the battery module causing the battery module to stopsupplying power to the load device when the battery module is not withinthe virtual boundary.

Other embodiments provide a device charging system including a batterymodule and a central charging station. The battery module is configuredto supply a type of power to at least one load device. The centralcharging station is in communication with the battery module. Thecentral charging station includes a memory configured to store anidentifier of the battery module, an output port configured to supplypower to the battery module, and an electronic processor. The electronicprocessor is configured to associate the battery module with the centralcharging station by storing the identifier of the battery module, andcharge the battery module when the battery module is coupled to theoutput port. The electronic processor is further configured to determinewhen the battery module is removed from the central charging station andis no longer coupled to the output port, and define a virtual boundaryin which the battery module is expected to stay in. The electronicprocessor is further configured to determine a location of the batterymodule, determine, based the location of the battery module, whether thebattery module is within the virtual boundary, and transmit a command tothe battery module causing the battery module to stop supplying power tothe load device when the battery module is not within the virtualboundary

Other aspects of the application will become apparent by considerationof the detailed description and accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a diagram of an example charging system according tosome embodiments.

FIG. 2A illustrates a diagram of a central charging station of thecharging system of FIG. 1 according to some embodiments.

FIG. 2B illustrated a front perspective of the central charging stationof FIG. 2A according to some embodiments.

FIG. 3A illustrates a diagram of a battery module of the charging systemof FIG. 1 according to some embodiments.

FIG. 3B illustrates a front perspective of the battery module of FIG. 3Aaccording to some embodiments.

FIGS. 4A & 4B illustrate a diagram of a battery asset managementapplication system for the charging system of FIG. 1.

FIG. 5 is a side cutaway view illustrating a locking mechanism of thebattery module of FIGS. 3A & 3B according to some embodiments.

DETAILED DESCRIPTION

Before any embodiments of the application are explained in detail, it isto be understood that the application is not limited in its applicationto the details of construction and the arrangement of components setforth in the following description or illustrated in the followingdrawings. For ease of description, some or all of the example systemspresented herein are illustrated with a single exemplar of each of itscomponent parts. Some examples may not describe or illustrate allcomponents of the systems. Other exemplary embodiments may include moreor fewer of each of the illustrated components, may combine somecomponents, or may include additional or alternative components. Theapplication is capable of other embodiments and of being practiced or ofbeing carried out in various ways.

FIG. 1 illustrates a diagram of an example charging system 100 accordingto some embodiments. The charging system 100 includes a central chargingstation 105, one or more battery modules 110, and one or more loaddevices 115 coupled to the one or more battery modules 110. The centralcharging station 105 is configured to communicate with the batterymodules 110, for example via communication links 120. As described inmore detail in regard to FIGS. 4A and 4B, the central charging station105 verifies the battery modules 110 remain within a virtual boundary(or a geo-fence) proximate to the central charging station 105. Thebattery modules 110 supply power to the one or more load devices 115coupled to the respective battery module 110 while within the virtualboundary. When the central charging station 105 determines one of thebattery modules 110 is outside the virtual boundary, the centralcharging station 105 sends a command to the battery module 110 to stoppowering the load devices 115 coupled to the battery module 110. Inother embodiments, once a battery module 110 leaves the virtualboundary, the battery module 110 will become non-operational (forexample, prohibit the supply of power to a load device 115).

FIG. 2A illustrates a diagram of the central charging station 105according to some embodiments. In the embodiment illustrated, thecentral charging station 105 includes an electronic processor 202, amemory 204, an input and output (I/O) interface 206, a transceiver 208,an antenna 210, a power input 211, and a power output 213. In someembodiments, the central charging station 105 includes a display 212.The illustrated components, along with other various modules andcomponents are coupled to each other by or through one or more controlor data buses that enable communication therebetween. The use of controland data buses for the interconnection between and exchange ofinformation among the various modules and components would be apparentto a person skilled in the art in view of the description providedherein. In other constructions, the central charging station 105includes additional, fewer, or different components. For example, insome embodiments the central charging station 105 includes one or moreelectronic sensors configured to sense an electric (for example,voltage, current, and/or power) and/or thermal characteristic of thecentral charging station 105 and/or battery module(s) 110.

The electronic processor 202 obtains and provides information (forexample, from the memory 204 and/or the I/O interface 206), andprocesses the information by executing one or more software instructionsor modules, capable of being stored, for example, in a random accessmemory (“RAM”) area of the memory 204 or a read only memory (“ROM”) ofthe memory 204 or another non-transitory computer readable medium (notshown). The software can include firmware, one or more applications,program data, filters, rules, one or more program modules, and otherexecutable instructions.

The memory 204 can include one or more non-transitory computer-readablemedia, and includes a program storage area and a data storage area. Theprogram storage area and the data storage area can include combinationsof different types of memory, as described herein. The memory 204 mayinclude, among other things, a unique identifier for each battery module110 to be coupled to the central charging station 105. The electronicprocessor 202 is configured to retrieve from the memory 204 and execute,among other things, software related to the control processes andmethods described herein.

The I/O interface 206 is configured to receive input and to provideoutput to peripherals. The I/O interface 206 obtains information andsignals from, and provides information and signals to, (for example,over one or more wired and/or wireless connections) devices bothinternal and external to the central charging station 105. In someembodiments, the I/O interface 206 may include user-actuable devices(for example, a keypad, switches, buttons, soft keys, and the like) andindictor lights/devices (for example, light emitting diodes (LEDs),haptic vibrators, and the like).

The electronic processor 202 is configured to control the transceiver208 to transmit and receive data to and from the central chargingstation 105. The electronic processor 202 encodes and decodes digitaldata sent and received by the transceiver 208. The transceiver 208transmits and receives radio signals to and from various wirelesscommunications networks using the antenna 210. The electronic processor202 and the transceiver 208 may include various digital and analogcomponents, which for brevity are not described herein and which may beimplemented in hardware, software, or a combination of both. Someembodiments include separate transmitting and receiving components, forexample, a transmitter and a receiver, instead of a combined transceiver208.

In some embodiments, the central charging station 105 also includes adisplay 212. The display 212 is a suitable display, for example, aliquid crystal display (LCD) touch screen, or an organic light-emittingdiode (OLED) touch screen. The central charging station 105 mayimplement a graphical user interface (GUI) (for example, generated bythe electronic processor 202, from instructions and data stored in thememory 204, and presented on the display 212), that enables a user tointeract with the central charging station 105. The graphical userinterface may allow a user to view information regarding the centralcharging station. Such information may include the type and chargingstatus of the connected battery modules 110 and the load devices 115coupled to the respective battery modules 110. The graphical userinterface may also allow an authorized user to define and adjust thevirtual boundary of the central charging station 105, install or removeadditional battery modules 110 to the system 100, or remotely commandone or more battery modules 110 to stop supplying power to or chargingthe load devices 115 coupled to them. The graphical user interface mayallow interaction with the interface using gesture-based inputs oruser-actuated switches/buttons. The graphical interface may be partiallydistributed on one or more additional external devices, for example asmartphone or tablet. In some embodiments, the external devices includeone or more of the connected load devices 115.

The power input 211 is configured to receive an input power. In theillustrated embodiment, the power input 211 is a power plug configuredto receive the input power from an electrical socket. In someembodiments, the input power is approximately 110 VAC to approximately120 VAC. In other embodiments, the input power is approximately 210 VACto approximately 220 VAC.

The central charging station 105 is configured to be associated with oneor more battery modules 110. The electronic processor 202 is configuredto provide power to and communicate with the battery module 110 throughthe I/O interface 206. The battery module 110 is configured to becoupled to the central charging station 105 to be charged via a wiredconnection, receptacle to socket connection, or wirelessly (for example,via inductive charging). The battery module 110 is also removable fromthe central charging station 105. When the battery module 110 is removed(no longer physically coupled to the central charging station 105), theelectronic processor 202 communicates wirelessly with the battery module110 via the transceiver 208.

Communication between the central charging station 105 and variouscomponents including the battery modules 110 can occur through thecommunication links 120. In some embodiments, the communication links120 is, for example, a wide area network (WAN), a transport controlprotocol/internet protocol (TCP/IP) based network, a cellular network,such as, for example, a Global System for Mobile Communications (orGroupe Special Mobile (GSM)) network, a General Packet Radio Service(GPRS) network, a Code Division Multiple Access (CDMA) network, anEvolution-Data Optimized (EV-DO) network, an Enhanced Data Rates for GSMEvolution (EDGE) network, a 1G network, a 3GSM network, a 4GSM network,a Digital Enhanced Cordless Telecommunications (DECT) network, a Digitaladvanced mobile phone system (AMPS) (IS-136/time division multipleaccess (TDMA)) network, or an Integrated Digital Enhanced Network (iDEN)network, etc.). In other embodiments, the communication links 120 is,for example, a local area network (LAN), a neighborhood area network(NAN), a home area network (HAN), or personal area network (PAN)employing any of a variety of communications protocols, such as Wi-Fi,Bluetooth, ZigBee, etc.

The central charging station 105 is configured to provide power, viapower output 213, to one or more battery modules 110. Althoughillustrated as providing power to a single battery module 110, in otherembodiments, the central charging station 105 is configured to providepower to two or more battery modules 110. In some embodiments, thebattery modules 110 receive the power and charge a battery 312 (FIG. 3A)of the battery module 110. In some embodiments, the power is suppliedvia a proprietary charging interface. In such an embodiment, thecharging interface may be wired. In other embodiments, the power issupplied via wireless power transmission (for example, inductivecharging). In some embodiments, the power output port 213 may beconfigured to transfer power to, as well as communicate with, the one ormore battery modules 110. For example, in some embodiments, the poweroutput port 213 may be configured to perform near-field communication(NFC). In further embodiments, the central charging station 105 isconfigured to determine and implement a charging limit on the one ormore battery modules 110. The charging limit may be automaticallydetermined by the charging station 105 or set by a user. Although asingle power output 213 is illustrated, it should be understood that, insome embodiments, the central charging station 105 may include more thanone power output port 213. The central charging station 105 may includeadditional output ports (not shown) configured to provide power toand/or communicate with additional electronic devices other than thebattery modules 110.

In some embodiments, the central charging station 105 stores (within thememory 204) an index of unique identifiers, each identifier assigned toa battery module 110. The index may be updated (identifiers may be addedor removed) via the user interface on the display 212, a wirelesselectronic command from a remote device via the transceiver 208, and/orthe I/O interface of the central charging station 105. The centralcharging station 105 may be configured to, upon receiving a batterymodule 110, receive an identifier associated with the battery module 110from the battery module 110 and refer to the index to determine if theidentifier is stored within the memory 204. When the identifier is notfound in the index, the central charging station 105 may generate analert, for example on the display 212, that an unknown battery module110 has been received. In further embodiments, the central chargingstation 105 may be configured to transmit the alert, including theidentifier, to another central charging station.

In some embodiments, the central charging station 105 includes one ormore cavities (for example, cavities 214 in FIG. 2B) configured to holdthe one or more battery modules 110 while they are charging/coupled tothe central charging station 105. In some embodiments, the one or morecavities 214 extrude from the central charging station 105. In furtherembodiments, the one or more cavities 214 may be recessed in the centralcharging station 105. The one or more battery modules 110 and cavities214 may be configured to be modular so that the battery module(s) 110fit securely into the respective cavity 214.

The central charging station 105 may include one or more locking (orlatching) mechanisms 216 configured to secure the battery modules 110 tothe central charging station 105. FIG. 5 is a side cutaway viewillustrating an exemplary embodiment of the locking mechanism 216 withthe battery module 110. The locking mechanism 216 includes a lockingmember 502A configured to engage with a receiver cavity 502B of thebattery module 110. When in an unlocked position 501A, the lockingmember 502A is not engaged with the receiver cavity 502B, allowing thebattery module 110 to be removed from the central charging station 105.When in a locked position 501B, the locking member 502A is engaged withthe receiver cavity 502B so that the battery module 110 is secured andnot removable from the central charging station 105. It should beunderstood that the locking mechanism 216 may utilize other kinds oflocking/latching configurations besides the illustrated embodiment. Insome embodiments, the battery module 110 includes the locking member502A while the central charging station 105 includes the receiver cavity502B.

The locking mechanisms 216 may be configured to be electronicallylocked, where the locking mechanism 216 is operated (locked andunlocked) electronically or remotely (for example, “smart locked”). Whenthe locking mechanisms 216 are configured to be electronically locked,they may be operated via electronic commands from a user interactionthrough the graphic user interface on the display 212, an input deviceof the input and output interface 206, and/or an electronic command froma remote device (for example, a smart phone, tablet, computer, or otherpersonal electronic device) received via the transceiver 208. In someembodiments, the locking mechanisms 216 may be configured to bephysically engaged (required to be manually locked and unlocked via akey, a turn of a knob, or the activation of a user-actuable device inorder to be operated). In some embodiments the locking mechanism 216 mayutilize more than one kind of locking/latching configuration. Forexample, in some embodiments, the locking mechanism 216 may beconfigured to both physically and electronically lock, wherein, when thelocking mechanism 216 is configured to override/bypass the electroniclock when physically engaged, allowing a user to unlatch one or more ofthe battery modules 110 without an electronic command.

Returning to FIG. 2A, in some embodiments, the central charging station105 may include a battery module sensor 218 in (or proximate to) each ofthe power output port 213 (for example, within each cavity 214). Thebattery module sensor 218 is configured to sense when one or more of thebattery modules 110 is present/coupled to the central charging station105. The battery module sensor 218 may be used in addition to thewireless and/or wired communication (for example, via the transceiver208 and the I/O interface 206 and/or power output 213 respectively)between the charging station 105 and the battery module(s) 110 as aseparate means of determining when the battery module(s) 110 is placedin the charging station 105. For example, the battery module sensor 218may be configured to read an identification label/chip (for example, aradio-frequency identification or RFID chip) of the battery module 110.This secondary communication may be used by the central charging station105 to determine if there is an issue/malfunction with thewireless/wired communication between the central charging station 105and the battery module(s) 110.

FIG. 2B illustrates an exemplary embodiment of the system 100 includingthe central charging station 105 and the battery modules 110. In theillustrated embodiment, the charging station 105 is configured as acabinet. It should be understood that other configurations of thecharging station 105 are realizable. The charging station 105 may beconfigured to be mounted/secured to a vertical or horizontal surface orbe integrated into a stand-alone structure. For example, the chargingstation 105 may be integrated into a stanchion, a portable cart, atable, and the like.

FIG. 3A illustrates a block diagram of the battery module 110 of thecentral charging station 105. The battery module 110 includes anelectronic processor 302, a memory 304, a transceiver 306, an antenna308, at least one power output 310, a battery 312, and a power input313.

The power output 310 is configured to connect/couple to one of the loaddevices 115 to supply power. In some embodiments, the power output 310is configured to receive a power plug. Although only one power output310 is illustrated, it should be understood that in some embodiments thebattery module 110 includes more than one power output 310. In suchembodiments, the power outputs 310 are similar power receptaclesconfigured to output similar types of power, while in other embodiments,power outputs 310 are different power receptacles configured to outputpower of different types or having different characteristics (forexample, different voltage amplitudes and/or magnitudes, differentvoltage frequencies, alternating current, or direct current). Forexample, one power output 310 is a direct current power receptacleconfigured to output power having approximately 12 VDC, a second poweroutput 310 is a North American power receptacle configured to outputpower having approximately 120 VAC, and the third power output 310 is aUniversal Serial Bus (USB) power output configured to outputapproximately 5 VDC. However, in other embodiments, the power outputsmay be different. In other embodiments, the battery module 110 may beconfigured to wirelessly charge one or more of the load devices 115, forexample via inductive charging.

In some embodiments, the battery module 110 may be configured toelectronically communicate (via the transceiver 306 and/or via the poweroutput(s) 310) with one or more load devices 115 coupled to the batterymodule 110. In some embodiments, the battery module 110 is configured tonotify (for example, ping) the central charging station 105 repeatedlyafter a predetermined amount of time. The battery module 110 may use theinformation to approximate the distance that the battery module 110 isfrom the central charging station 105.

In some embodiments the battery module 110 further includes one or moreof a rectifier, alternator, or other converter. The rectifier and/oralternator are configured to convert the power from the battery to anappropriate output power to be output to the one or more load device115.

As discussed above with respect to central charging station 105, thebattery module 110 is configured to receive power from the centralcharging station 105 via the power input 313. In some embodiments, thebattery module 110 may include charging circuitry to receive the powerfrom the central charging station 105 and charge the battery 312. Insome embodiments, the power input 313 may be a wireless charging coilconfigured to wirelessly receive power and/or communicate with thecentral charging station 105. As mentioned above, in furtherembodiments, one or more of the at least one output port 310 may be awireless charging coil configured to wirelessly transmit power to theload device(s) 115. In some embodiments, the power output 310 and powerinput 313 may be integrated into a single bi-directional port (or coil)configured to both transmit and receive power to and from the chargingstation 105 and the load device(s) 115.

The battery module 110 may include one or more input/output components(not shown) similar to those described above in regard to the I/Ointerface 206. In some embodiments, the battery module 110 is configuredto generate a visual and/or audible alert to indicate a particularoperational status. Such operational statuses may include a detectedfault within the battery module 110, the battery 312 is low on charge,or the battery module 110 is outside the virtual boundary and hasstopped supplying power to the load device 115. A visual indication maybe provided via one or more light-emitting diodes (LEDs), a display (notillustrated), or an alarm. In some embodiments, the battery module 110may be configured to forward information regarding the particularcondition to one or more external devices, for example the load device115 or the central charging station 105.

In some embodiments, the battery module 110 includes more than onebattery 312. In further embodiments, the battery module 110 may beconfigured to allow additional batteries 312 to be added or removed fromthe battery module 110. In such embodiments, the battery module 110 mayfurther include a secure panel (not shown) to prevent unauthorizedremoval of the batteries 312. In some embodiments, the central chargingstation 105 is configured to monitor an electric charge curve (anelectric and/or thermal characteristic profile over time) via one ormore electronic sensors (not shown) during charging of the battery 312.The central charging station 105 may be configured to record and storethe charging pattern of the battery 312 of the battery module 110 whilecoupled to the charging station 105. The central charging station 105may be further configured to analyze the charging pattern for anyindications of potential malfunction in the battery module 110. When anindication is determined to be present, the central charging station 105may generate a visual and/or audible alert indicating the battery module110 indicating the potential malfunction. In some embodiments, when apotential malfunction is determined to be present in the battery module110, the central charging station 105 may keep the locking mechanism 216engaged so that the battery module 110 cannot be removed unless anauthorized personnel clears the alert. Authorization may be validatedvia the graphic user interface of the display 212 or an input device ofthe I/O interface 206. In some embodiments, an electric charge curve maybe recorded and stored by the battery module 110 while the batterymodule 110 is charging one or more load devices 115. The battery module110 may transmit the electric charge curve to the central chargingstation 105 for, for example, monitoring usage and/or monitoring forpotential maintenance. In some embodiments, the central charging station105 may use the curve information from the battery module 110 todetermine the amount of usage of the battery module from the time thebattery module 110 was removed from the central charging station to whenthe battery module 110 was returned. The charging station 105 may thencalculate a price to charge a user of the battery module 110 based onthe amount of usage.

FIG. 3B illustrates an exemplary embodiment of the battery module 110.The battery module 110 includes a housing 314 encasing the componentsdescribed above in regard to FIG. 3A and includes multiple power outputs310. As illustrated, in some embodiments, the battery module 110includes one or more light sources 316 to indicate to a user anoperational status of the battery module 110. It should be noted that,in some embodiments, the battery module 110 may include additionalcommunication ports/coils to communicate with other electronic devices.In further embodiments, the battery module 110 may include a mountingbracket or clip (not shown) so that it may be attached/hung from asurface.

FIGS. 4A and 4B illustrate an example virtual boundary 400 of thecharging system 100. The virtual boundary 400, or geofence, is a virtualboundary superimposed on an area. The area may be the area surroundingthe central charging station 105 or an area proximate to the centralcharging station 105. The configuration of the virtual boundary 400, forexample the shape or the size, may be predefined or defined by a uservia, for example, the user interface.

The central charging station 105 determines whether one or more of thebattery modules 110 are within the virtual boundary 400. In someembodiments, the central charging station 105 is configured to collectinformation based on monitoring the location and status of each of thebattery modules 110. The location of the battery modules 110 may bedetermined via proximity sensors (not illustrated) or radio frequencycommunication, for example Bluetooth or radio frequency identification(RFID). In some embodiments, the battery modules 110 are tracked using,among other things, satellite navigation tracking (e.g., globalnavigation satellite system (GNSS) tracking, global positioning system(GPS) tracking, Galileo tracking, Indian Regional Navigation SatelliteSystem (IRNSS) tracking, GLObal NAvigation System (GLONAS) tracking,BeiDou Navigation Satellite System, etc.) and WiFi-based tracking. Insome embodiments, the battery modules 110 transmit information regardingtheir location to the central charging station 105.

While the battery module 110 is within the virtual boundary 400, thebattery module 110 is operable to provide power to charge the one ormore load devices 115 connected to the battery module 110. However, asillustrated in FIG. 4B, when one of the battery modules 110 leaves or isoutside of the virtual boundary 400, the battery module 110 prohibitspower to the load devices 115 it is connected to.

In some embodiments, the central charging station 105 is configured towirelessly charge the one or more battery modules 110 while the batterymodules 110 are within a predetermined charging range of the centralcharging station 105. The battery modules 110, while within thispredetermined charging range, may then be wirelessly charged whilecharging one or more of the connected load devices 115. Thepredetermined charging range may be the same as or less than the rangeof the virtual boundary 400. For example, when the charging system 100is located in a room within a commercial building, the virtual boundary400 may be defined to encompass the entire commercial building while thepredetermined charging range is limited to a single room within thecommercial building. When this is the case, a user with the batterymodule 110 is able to charge or power a load device 115 as well as thebattery module 110 while within the single room of the commercialbuilding. When the user takes the battery module 110 outside the singleroom, leaving the predetermined charging range, the battery module 110no longer receives a wireless charge from the central charging station105. However, the user is still able to use the battery module 110 tosupply power to the one or more load devices 115.

In some embodiments, the battery module 110 is configured toperiodically determine an approximate distance the battery module 110 isfrom the central charging station 105. For example, the battery module110 may periodically ping the central charging station 105 and use theinformation to approximate the distance of the battery module 110 fromthe central charging station 105. In further embodiments, the batterymodule 110 may use the approximate distance to determine when thebattery module 110 is outside the virtual boundary 400. The batterymodule 110 may then provide a visual/audible indication to the user tonotify that they are outside the virtual boundary 400 and/or notify thecentral charging station 105 that the battery module 110 is outside thevirtual boundary 400. In some embodiments, the battery module 110 isconfigured to cease providing power/charging the load device(s) 115 whenthe battery module 110 determines that the battery module 110 is outsidethe virtual boundary. The battery module 110 may continue to approximatethe distance from the central charging station 105 and continueproviding power/charging the load device(s) 115 when the battery module110 determines that the battery module 110 is within the virtualboundary 400 again. In further embodiments, the battery module 110 isconfigured to stop powering/charging the load device(s) 115 and/or shutoff after failing to receive a response from the charging station 105after sending one or more ping requests.

In the foregoing specification, specific embodiments have beendescribed. However, one of ordinary skill in the art appreciates thatvarious modifications and changes can be made without departing from thescope of the application as set forth in the claims below. Accordingly,the specification and figures are to be regarded in an illustrativerather than a restrictive sense, and all such modifications are intendedto be included within the scope of present teachings.

The benefits, advantages, solutions to problems, and any element(s) thatmay cause any benefit, advantage, or solution to occur or become morepronounced are not to be construed as a critical, required, or essentialfeatures or elements of any or all the claims. The application isdefined solely by the appended claims including any amendments madeduring the pendency of this application and all equivalents of thoseclaims as issued.

Moreover in this document, relational terms for example first andsecond, top and bottom, and the like may be used solely to distinguishone entity or action from another entity or action without necessarilyrequiring or implying any actual such relationship or order between suchentities or actions. The terms “comprises,” “comprising,” “has,”“having,” “includes,” “including,” “contains,” “containing” or any othervariation thereof, are intended to cover a non-exclusive inclusion, suchthat a process, method, article, or apparatus that comprises, has,includes, contains a list of elements does not include only thoseelements but may include other elements not expressly listed or inherentto such process, method, article, or apparatus. An element proceeded by“comprises . . . a,” “has . . . a,” “includes . . . a,” or “contains . .. a” does not, without more constraints, preclude the existence ofadditional identical elements in the process, method, article, orapparatus that comprises, has, includes, contains the element. The terms“a” and “an” are defined as one or more unless explicitly statedotherwise herein. The terms “substantially,” “essentially,”“approximately,” “about” or any other version thereof, are defined asbeing close to as understood by one of ordinary skill in the art, and inone non-limiting embodiment the term is defined to be within 10%, inanother embodiment within 5%, in another embodiment within 1% and inanother embodiment within 0.5%. The term “coupled” as used herein isdefined as connected, although not necessarily directly and notnecessarily mechanically. A device or structure that is “configured” ina certain way is configured in at least that way, but may also beconfigured in ways that are not listed.

It will be appreciated that some embodiments may be comprised of one ormore generic or specialized processors (or “processing devices”) forexample microprocessors, digital signal processors, customizedprocessors and field programmable gate arrays (FPGAs) and unique storedprogram instructions (including both software and firmware) that controlthe one or more processors to implement, in conjunction with certainnon-processor circuits, some, most, or all of the functions of themethod and/or apparatus described herein. Alternatively, some or allfunctions could be implemented by a state machine that has no storedprogram instructions, or in one or more application specific integratedcircuits (ASICs), in which each function or some combinations of certainof the functions are implemented as custom logic. Of course, acombination of the two approaches could be used.

Moreover, an embodiment can be implemented as a computer-readablestorage medium having computer readable code stored thereon forprogramming a computer (e.g., comprising a processor) to perform amethod as described and claimed herein. Examples of suchcomputer-readable storage mediums include, but are not limited to, ahard disk, a CD-ROM, an optical storage device, a magnetic storagedevice, a ROM (Read Only Memory), a PROM (Programmable Read OnlyMemory), an EPROM (Erasable Programmable Read Only Memory), an EEPROM(Electrically Erasable Programmable Read Only Memory) and a Flashmemory. Further, it is expected that one of ordinary skill,notwithstanding possibly significant effort and many design choicesmotivated by, for example, available time, current technology, andeconomic considerations, when guided by the concepts and principlesdisclosed herein will be readily capable of generating such softwareinstructions and programs and ICs with minimal experimentation.

Thus, the application provides, among other things, a system and methodof device charging. Various features and advantages of the applicationare set forth in the following claims.

What is claimed is:
 1. A device charging system comprising: a batterymodule configured to supply a type of power to at least one load device;and a central charging station in communication with the battery module,the central charging station including an electronic processorconfigured to: define a virtual boundary; determine a location of thebattery module; determine, based the location of the battery module,whether the battery module is within the virtual boundary; and transmita command to the battery module causing the battery module to stopsupplying power to the load device when the battery module is not withinthe virtual boundary.
 2. The device charging system of claim 1, whereinthe electronic processor is further configured to add and removeadditional battery modules to the device charging system.
 3. The devicecharging system of claim 1, wherein the central charging station isconfigured to charge a battery of the battery module when the batterymodule is coupled to the central charging station.
 4. The devicecharging system of claim 1, wherein the type of power supplied to the atleast one load device is transferred wirelessly.
 5. The device chargingsystem of claim 1, wherein the battery module is configured to supply asecond type of power to a second load device.
 6. The device chargingsystem of claim 5, wherein the second type of power is difference fromthe type of power supplied to the at least one load device.
 7. Thedevice charging system of claim 1, wherein the electronic processor isfurther configured to wirelessly charge the battery module while thebattery module is within a predetermined charging range.
 8. The devicecharging system of claim 1, wherein the electronic processor is furtherconfigured to supply power to the battery module via a proprietarycharging interface.
 9. A method of monitoring a battery module supplyingpower to at least one load device within a charging system, the methodcomprising: defining a virtual boundary; determining a location of thebattery module; determining, based the location of the battery module,whether the battery module is within the virtual boundary; andtransmitting a command to the battery module causing the battery moduleto stop supplying power to the load device when the battery module isnot within the virtual boundary.
 10. The method of claim 9, the methodfurther comprising adding or removing an additional battery module tothe charging system.
 11. The method of claim 9, wherein the centralcharging station is configured to charge a battery of the battery modulewhen the battery module is coupled to the central charging station. 12.The method of claim 9, wherein the type of power supplied to the atleast one load device is transferred wirelessly.
 13. The method of claim9, wherein the battery module is configured to supply a second type ofpower to a second load device.
 14. The method of claim 13, wherein thesecond type of power is difference from a type of power supplied to theat least one load device.
 15. The method of claim 9 further comprisingwirelessly charging the battery module while the battery module iswithin a predetermined charging range.
 16. The method of claim 9 furthercomprising supplying power to the battery module via a proprietarycharging interface.
 17. A device charging system comprising: a batterymodule configured to supply a type of power to at least one load device;and a central charging station in communication with the battery module,the central charging station including a memory configured to store anidentifier of the battery module; an output port configured to supplypower to the battery module; and an electronic processor configured to:associate the battery module with the central charging station bystoring the identifier of the battery module; charge the battery modulewhen the battery module is coupled to the output port; determine whenthe battery module is removed from the central charging station and isno longer coupled to the output port; define a virtual boundary in whichthe battery module is expected to stay in; determine a location of thebattery module; determine, based the location of the battery module,whether the battery module is within the virtual boundary; and transmita command to the battery module causing the battery module to stopsupplying power to the load device when the battery module is not withinthe virtual boundary.
 18. The device charging system of claim 17,wherein the electronic processor is further configured to add and removeidentifiers of additional battery modules to the memory of the centralcharging station.
 19. The device charging system of claim 17, whereinthe central charging station further includes a secondary sensorconfigured to read an identification label of the battery module todetermine when the battery module is coupled to the output port.
 20. Thedevice charging system of claim 17, wherein the type of power suppliedto the at least one load device is transferred wirelessly.
 21. Thedevice charging system of claim 17, wherein the battery module isconfigured to supply a second type of power to a second load device. 22.The device charging system of claim 21, wherein the second type of poweris difference from the type of power supplied to the at least one loaddevice.
 23. The device charging system of claim 17, wherein theelectronic processor is further configured to wirelessly charge thebattery module while the battery module is within a predeterminedcharging range.
 24. The device charging system of claim 17, wherein theelectronic processor is further configured to supply power to thebattery module via a proprietary charging interface.
 25. The devicecharging system of claim 17, wherein the central charging system furtherincludes a locking mechanism configured to secure the battery module tothe central charging station when the battery module is coupled to thecentral charging station.
 26. The device charging system of claim 25,wherein the locking mechanism includes at least one selected from thegroup consisting of an electronic lock and a physical lock.
 27. Thedevice charging system of claim 17, wherein the electronic processor isfurther configured to determine a potential malfunction in the batterymodule by monitoring an electronic charge characteristic of the batterymodule while the battery module is being charged and, when the potentialmalfunction is determined to exist, generate an alert to a user of thedevice charging system.